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perf trace: Add --verbose option

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Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ain6q4u8g3bpnh18yhw24v2x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2013-08-22 16:49:54 -03:00
parent b059efdf52
commit 7c304ee0fc
2 changed files with 12 additions and 4 deletions
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4
tools/perf/Documentation/perf-trace.txt
View File

@ -49,6 +49,10 @@ OPTIONS
--uid=::
Record events in threads owned by uid. Name or number.
-v::
--verbose=::
Verbosity level.
-i::
--no-inherit::
Child tasks do not inherit counters.

12
tools/perf/builtin-trace.c
View File

@ -1,6 +1,7 @@
#include <traceevent/event-parse.h>
#include "builtin.h"
#include "util/color.h"
#include "util/debug.h"
#include "util/evlist.h"
#include "util/machine.h"
#include "util/thread.h"
@ -311,10 +312,12 @@ static struct syscall *trace__syscall_info(struct trace *trace,
return &trace->syscalls.table[id];
out_cant_read:
fprintf(trace->output, "Problems reading syscall %d", id);
if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)
fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
fputs(" information", trace->output);
if (verbose) {
fprintf(trace->output, "Problems reading syscall %d", id);
if (id <= trace->syscalls.max && trace->syscalls.table[id].name != NULL)
fprintf(trace->output, "(%s)", trace->syscalls.table[id].name);
fputs(" information\n", trace->output);
}
return NULL;
}
@ -714,6 +717,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
"show only events with duration > N.M ms",
trace__set_duration),
OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
OPT_INCR('v', "verbose", &verbose, "be more verbose"),
OPT_END()
};
int err;